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Precision half-life determination of a mirror β transition: The decay of 31S

Abstract : The half-life of the mirror β decay of 31S has been measured at the IGISOL facility at the University of Jyv¨askyl¨a. The value obtained is T1/2(31S) = (2553.4 ± 1.8) ms, in agreement with previous measurements, but with a precision that is better by a factor of ten than the literature value previously adopted. When the new result is combined with the QEC value measured recently at JYFLTRAP, a precision of better than 10 −3 is obtained for the ft value.
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Submitted on : Thursday, January 10, 2013 - 11:11:58 AM
Last modification on : Tuesday, November 24, 2020 - 11:30:20 AM

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A. Bacquias, T. Kurtukian Nieto, P. Ascher, L. Audirac, J. Aysto, et al.. Precision half-life determination of a mirror β transition: The decay of 31S. European Physical Journal A, EDP Sciences, 2012, 48, pp.155. ⟨10.1140/epja/i2012-12155-9⟩. ⟨in2p3-00772221⟩

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